';
var_dump($contents);
echo '';
foreach($contents as $x => $y)
{
$eks = $x + 1;
$ySum += $y;
$xSum += $eks;
$xySum += $eks*$y;
$xSquaredSum += $eks^2;
}
$b = (($ySum * $xSquaredSum) - ($xSum * $xySum)) / (($n * $xsquaredSum) - $xSum^2);
$m = (($n * $xySum) - ($xSum*$ySum))/(($n*$xSquaredSum) - $xSum^2);
echo "sigma(x) = $xSum
";
echo "sigma(x*y) = $xySum
";
echo "sigma(x^2) = $xSquaredSum
";
echo "sigman(y) = $ySum
";
echo "b = $b
";
echo "m = $m
";
?>